Home / 43,489.91-65,243.06-13,899.80

Finding the Fourth Proportional to 43,489.91, 65,243.06 and 13,899.80

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Solution

The fourth proportional to 43,489.91, 65,243.06 and 13,899.80 is: 20,852.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,489.91 : 65,243.06 = 13,899.80 : x
  2. Step 2: Convert to fraction form
    43,489.91/65,243.06 = 13,899.80/x
  3. Step 3: Cross multiply
    43,489.91x = 65,243.06 × 13,899.80
  4. Step 4: Simplify right side
    43,489.91x = 906,865,485.39
  5. Step 5: Solve for x
    x = 906,865,485.39/43,489.91
  6. Step 6: Final answer
    x = 20,852.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.